7

®

OPA606

T

APPLICATIONS INFORMATION

OFFSET VOLTAGE ADJUSTMENT

The OPA606 offset voltage is laser-trimmed and will require

no further trim for most applications. As with most amplifi-

ers, externally trimming the remaining offset can change

drift performance by about 0.5

µV/°C for each millivolt of

adjusted offset. Note that the trim (Figure 1) is similar to

operational amplifiers such as LF156 and OP-16. The

OPA606 can replace most other amplifiers by leaving the

external null circuit unconnected.

FIGURE 1. Offset Voltage Trim.

SETTLING TIME vs CLOSED-LOOP GAIN

10

8

6

4

2

0

Closed-Loop Gain (V/V)

1

10

100

1k

TOTAL HARMONIC DISTORTION

vs FREQUENCY

0.01

0.008

0.006

0.004

0.002

0

Frequency (Hz)

100

1k

10k

100k

Test Equipment

Limit

G = +1

V

+80

0

–80

0.5

01

+40

+40

SMALL SIGNAL TRANSIENT RESPONSE

Time (µs)

LARGE SIGNAL TRANSIENT RESPONSE

Time (µs)

+15

0

–15

2.5

05

100k

Ω

2

3

1

+V

CC

4

7

NOTE: (1) 10k

Ω to 1MΩ

Trim Potentiometer

(100k

Ω Recommended)

–V

CC

5

6

(1)

OPA606

±50mV Typical

Trim Range